Development of Friction Stir Processing for Repair of Nuclear Dry Cask Storage System Canisters

被引：7
|
作者：
Ross, Ken [2 ]
Sutton, Ben [1 ]
Grant, Glenn [2 ]
Cannell, Gary [3 ]
Frederick, Greg [1 ]
Couch, Robert [1 ]
机构：
[1] Elect Power Res Inst, 1300 W WT Harris Blvd, Charlotte, NC USA
[2] Pacific Northwest Natl Lab, 902 Battelle Blvd, Richland, WA 99352 USA
[3] Fluor Enterprises Inc, 1200 Jadwin Ave, Richland, WA USA
来源：
FRICTION STIR WELDING AND PROCESSING IX | 2017年
关键词：
Friction stir; Stress corrosion crack; Sensitization; Repair; Temperature control;
D O I：
10.1007/978-3-319-52383-5_5
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
The Nuclear Regulatory Commission has identified chloride-induced stress corrosion cracking (CISCC) of austenitic stainless steel dry cask storage systems (DCSS) as an area of great concern. Friction stir processing (FSP) was used to repair laboratory-generated stress corrosion cracking (SCC) in representative stainless steel 304 coupons. Results of this study show FSP is a viable method for repair and mitigation CISCC. This paper highlights lessons learned and techniques developed to apply FSP to crack repair in sensitized thick section stainless steel 304. These include: development of process parameters, welding at low spindle speed, use of weld power and temperature control and optimization of these controls. NDE and destructive analysis are also presented to demonstrate effectiveness of the developed methods for SCC crack repair.
引用
收藏
页码：39 / 46
页数：8
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